Focusing on Harm Reduction Theory as a metatheoretical framework for encouraging motorcycle safety, Haas and Mattson provide a unique and important contribution to health communication scholarship and practice. They present a useful distinction between risk and harm issues and thoroughly overview several possible theories in terms of application to motorcycle safety. The book is detailed and comprehensive, offering useful and significant suggestions that have relevance well beyond motorcycle safety itself. Scholars and practitioners will find that this book propounds a perspective that has the potential to revolutionize numerous aspects of health communication work, including an understanding of metatheory.